Invisalign is a really expensive thing that no one wants to steal. amirite?

My daughter took her Invisalign out to eat lunch at school last year and left it in the case in her backpack in her classroom and someone stole it. They had to know what it was when they took it because the little purple case clearly had Invisalign in big black letters on it.

To get insurance to cover 50%, I had to pay the full $4200 up front. But instead of getting a check for $2100, I get a check from them for $58.33 a month for 36 months. They don't do replacements so now she doesn't even have it anymore and I'm out 4 grand because someone wanted to steal it.